Hyundai Sonata: Knock Sensor (KS). Description and Operation
Description
Knocking is a phenomenon characterized by undesirable vibration and noise
and can cause engine damage. Knock Sensor (KS) is installed on the cylinder
block and senses engine knocking.
When knocking occurs, the vibration from the cylinder block is applied
as pressure to the piezoelectric element. When a knock occurs, the sensor produces
voltage signal. The ECM retards the ignition timing when knocking occurs. If
the knocking disappears after retarding the ignition timing, the ECM will advance
the ignition timing. This sequential control can improve engine power, torque
and fuel economy.
Camshaft Position Sensor (CMPS). Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification:
Refer to “Wave Form”
...
Knock Sensor (KS). Specifications
Specification
Item
Specification
Capacitance (pF)
850 ~ 1,150
...
See also:
Engine Oil. Repair procedures - Revised
Oil And Filter Replacement
•
Prolonged and repeated contact with mineral
oil will result in ...
Fuel Filler Door Release Actuator. Repair procedures
Inspection
1.
Remove the trunk room left side trim.
(Refer to the BD group - "Interior trim")
2.
Open the fuel filler door an ...
Resetting the sunroof
Whenever the vehicle battery is disconnected or discharged, or related fuse is
open, you must reset your sunroof system as follows:
1.Turn the ignition switch to the ON position and close the sunro ...